I have a basic Prodigy system, i am looking to add distributed audio to 6 zones. Other than the Prodigy Pamp in which case I would need 2 to achieve my 6 zones, is there any other systems that easily integrate to the prodigy system?

I have a Crestron Authorized dealer who set up my prodigy system and I will be using him again. I am just trying to do some research before hand so that i am educated in all of my options before making a decision.